Question

我有这个问题我想从活动1传递原始文件以在活动2中播放

这是我的代码

活动1

package com.ze.zeggar.tewt;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class Main2Activity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        int ThePlayedSound= R.raw.waterdrop;

        Intent MyIntent= new Intent(this, MainActivity.class);
               MyIntent.putExtra("key",ThePlayedSound);
        startActivity(MyIntent);
    }
}

活动2

package com.ze.zeggar.tewt;

import android.content.Intent;
import android.media.AudioManager;
import android.media.SoundPool;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {
    Button button;
    SoundPool Sound_Pool_thing;
    int Click;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Intent MyIntent=getIntent();
        int ThePlayedSound= MyIntent.getIntExtra("key", 0);

        Sound_Pool_thing= new SoundPool(1, AudioManager.STREAM_MUSIC,0);

        Click = Sound_Pool_thing.load(this,ThePlayedSound , 1);

        button=(Button)findViewById(R.id.button);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Sound_Pool_thing.play(Click,1,1,1,0,1);

            }
        });

    }
}

当我尝试打开应用程序时，我得到了＃34;不幸的是，My_App已停止＆＃34; 该应用程序崩溃并且在建议后点击新的崩溃日志

06-06 10:49:09.069 3424-3424/com.ze.zeggar.tewt E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.ze.zeggar.tewt, PID: 3424
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.ze.zeggar.tewt/com.ze.zeggar.tewt.MainActivity}:
 android.content.res.Resources$NotFoundException: Resource ID #0x0
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2305)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2365)
at android.app.ActivityThread.access$800(ActivityThread.java:148)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1283)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5272)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:909)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:704)
Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x0
 at android.content.res.Resources.getValue(Resources.java:1269)
at android.content.res.Resources.openRawResourceFd(Resources.java:1227)
at android.media.SoundPool$SoundPoolImpl.load(SoundPool.java:566)
at android.media.SoundPool.load(SoundPool.java:229)
at com.ze.zeggar.tewt.MainActivity.onCreate(MainActivity.java:28)
at android.app.Activity.performCreate(Activity.java:5977)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2258)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2365) 
at android.app.ActivityThread.access$800(ActivityThread.java:148) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1283) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:135) 
at android.app.ActivityThread.main(ActivityThread.java:5272) 
at java.lang.reflect.Method.invoke(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:372) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:909) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:704)

有什么想法吗？

Answer 1

由于您未正确打开原始类型资源，因此未获取资源未找到异常

尝试从以下资源中获取原始音频文件：

            int ThePlayedSound = this.getResources().getIdentifier("waterdrop", "raw", getPackageName());

    Intent MyIntent= new Intent(this, MainActivity.class);
           MyIntent.putExtra("key",ThePlayedSound);
    startActivity(MyIntent);

Answer 2

使用MediaPlayer类怎么样？

请检查以下代码：

MainActivity类（或您想要从中开始新活动的任何类）

public class Main2Activity extends AppCompatActivity {
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activitiy_main2);
    int soundId = getIntent().getIntExtra("key",0);

    final MediaPlayer mPlayer =new MediaPlayer();
    mPlayer.setAudioSessionId(soundId);
    mPlayer.setLooping(true);

    Button button = (Button)findViewById(R.id.button);
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            mPlayer.start();
        }
    });
}
}

Main2Activity（播放音频的课程）

final MediaPlayer mPlayer =new MediaPlayer(this,soundId);

这段代码对我有用。

如果它说该特定构造函数不起作用，请尝试以下方法：

{{1}}

希望它可以帮助你！

SoundPool不会从其他活动中播放传递的原始内容

2 个答案: